Take a square piece of paper and divide it into three parts. You can measure it with a ruler and divide it into three parts horizontally and vertically to form a 3*3 grid.

Take a small square with four corners, and fold the small square in the lower right corner along the right diagonal to make a crease, just like the small squares in the other four corners.

Put the middle part of the paper upright, turn the four corners down, take a corner and fold it vertically.

Then put the corner horizontally, fold the hypotenuse horizontally, press out the crease, unfold this part, and fold the paper in.

After folding inward, fold the upper quadrilateral part of the paper, both sides to the middle, open it after folding, and fold the paper inward along the crease, as shown in the figure.

Stand upright and fold the sharp corners outward and downward. Do this for all four corners and fold as shown. Turn the edges out, turn all the edges out.

Pinch the corner and the just-turned edge together so that they overlap, and the left and right operations are the same, forming a heart shape. The operation of four corners is the same. Fold the top two corners of the heart down a little.

Turn the upper triangle part of the heart up, fold it along the dotted line of the upper triangle part, and hold the left and right sides after folding it left and right.

The rest is pressed inward and pressed downward into a small quadrilateral. After the four corners are operated in the same way, turn it over. Form a small heart.